Multi-layer magnet
US7212004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2005 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Jul 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/421
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A shielded superconducting MRI magnet system uses a multi-layer shielded coil design. By splitting the magnet coils into a plurality of coil layers, an increased number of degrees of freedom is achieved which, in turn, permits minimization of the overall length of the magnet while nevertheless avoiding excessive magnet field and stress values in the coils. A compact coil system is thereby designed which also satisfies the plurality of MRI requirements with regard to sufficiently large investigational volume, magnet field strength, acceptable homogeneity, and magnet stray field limitation while achieving sufficiently low maximum coil B field strengths and stress values to avoid quenches and maintain the structural integrity of the magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.